5A High Current NDB7A75 3.5-4.5W 445nm Blue Laser Driver 12V Step-Down Constant Current Drive Circuit w/TTL : High Power Burning Laser Pointers,DPSS Laser Diode LD Modules, Kinds of laser products
High Quality 532nm 100mw Green Laser Module/laser Diode/lighting+free Ttl Driver - Unknown - AliExpress
500mW 405nm (Bluray) Focusing Laser Module 12V with Separate TTL (PWM) Driver - OdicForce
TTL Laser Diode - 5mW 650nm Red - 50KHz Max : ID 1056 : $18.95 : Adafruit Industries, Unique & fun DIY electronics and kits